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ASTM Paint Committee approves zirconium treatment standard.

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September 29, 2010 - ASTM International Committee D01 on Paint and Related Coatings, Materials, and Applications developed ASTM D7639, Test Method for Determination of Zirconium Treatment Weight or Thickness on Metal Substrates by X-Ray Fluorescence, to aid production of fit-for-purpose and cost-effective parts. Applicable along process line or in QC lab, standard will be used to measure zirconium treatment weight or thickness applied to metal substrates.

ASTM Paint Committee Approves Standard for Zirconium Treatment

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ASTM International
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Press release date: September 21, 2010

W. CONSHOHOCKEN, Pa.-Zirconium is used as an anti-corrosive finishing/surface treatment on metal substrates. If the coating of zirconium is too thin, then the sought-for metal property will not be achieved. Similarly, applying too thick a coat means that treatment material is wasted and so is money. Therefore, ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications has developed a new standard, ASTM D7639, Test Method for Determination of Zirconium Treatment Weight or Thickness on Metal Substrates by X-Ray Fluorescence, to assist in the production of fit-for-purpose and cost-effective parts.

According to Christelle Petiot, XRF coatings product manager, Oxford Instruments Analytical, U.K., "This standard will be used to measure the zirconium treatment weight or thickness applied to metal substrates, either along the process line, or in the quality control lab." In both cases X-ray fluorescence instruments are used; handheld XRF instruments are typically used along the process line for rapid quality control with no sample preparation, and benchtop XRF instruments are used in the quality control lab. The XRF instruments are used to provide qualitative and quantitative data about the metals.

"ASTM D7639 shows users the performance (precision) that can be achieved by following its simple procedure and using the instrumentation defined in the method," says Petiot. The next step for Committee D01 and its Subcommittee D01.53 on Coil Coated Metal is to develop methods for other treatments such as chromium and titanium. The committee welcomes participation from all interested parties, particularly coil coater professionals.

To purchase ASTM standards, visit and search by the standard designation number, or contact ASTM Customer Relations (phone: 610-832-9585; ASTM International welcomes and encourages participation in the development of its standards. For more information on becoming an ASTM member, visit

ASTM International is one of the largest international standards development and delivery systems in the world. ASTM International meets the World Trade Organization (WTO) principles for the development of international standards: coherence, consensus, development dimension, effectiveness, impartiality, openness, relevance and transparency. ASTM standards are accepted and used in research and development, product testing, quality systems and commercial transactions.

View this release on the ASTM Web site at

ASTM Committee D01 Next Meeting: Jan. 30-Feb. 1, 2011, January Committee Week, Baltimore, Md. Technical Contact: Christelle Petiot, Oxford Instruments Analytical, High Wycombe, Buckinghamshire, United Kingdom;

ASTM Staff Contact: Jeffrey Adkins, Phone: 610-832-9738; ASTM PR Contact: Barbara Schindler, Phone: 610-832-9603;
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